Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1996-01-23
1999-01-26
Wayner, William
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
623241, 418 551, F01C 102, F25B 1300
Patent
active
058631909
ABSTRACT:
A scroll compressor includes a stationary scroll member accommodated in a closed housing and having a stationary end plate and a stationary scroll wrap protruding axially from the stationary end plate, and also includes an orbiting scroll member accommodated in the closed housing and having an orbiting end plate and an orbiting scroll wrap protruding axially from the orbiting end plate so as to engage with the stationary scroll wrap to define a plurality of working pockets therebetween. A volume ratio indicating a ratio of the volume of the working pockets at an end of suction to that at an end of compression is set to be smaller than a value corresponding to a compression ratio determined by an evaporation pressure and a condensation pressure at a performance half a rated performance during heating.
REFERENCES:
patent: 4730996 (1988-03-01), Akatsuchi et al.
patent: 4955797 (1990-09-01), Cowen
patent: 5597297 (1997-01-01), Akatzawa et al.
Fujio Katsuharu
Hase Syouzou
Morimoto Takashi
Sano Kiyoshi
Yamamoto Shuichi
Matsushita Electric - Industrial Co., Ltd.
Wayner William
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